Should I be mad at my in-laws?

So I had my first baby with my husband just last year. My baby is almost 10 months old now. My in laws hints at us of having the second one by sending my husband videos of my brother in law's kids which are 1.5 years a part, age 3 and 1. They continuously express how their grandkids get along well due to their small age gap difference subtly whenever they get the opportunity. I expressed what I sense to to my husband and he agreed with me. Told me to not respond to them as that's how they roll. I have been quite annoyed by the fact given we are going through a public health crisis with who knows how long this virus is going to be around and my occupation is a nurse though I don't work in the hospital. They totally disregarded the danger I may put myself in should I become pregnant and if I contracted covid but I have taken my first covid vaccine. I have read news where some people were under medically induced coma to grow fetus to term before giving birth. I don't want to put myself in this situation. I know I'm considering the worst case scenario. I just can't believe how they could be selfishly oblivious in where they want a grandkid and possibly jeporadized my life. How should I take this and respond?